Home / 617,132.68-851,707.20-355,497.03

Finding the Fourth Proportional to 617,132.68, 851,707.20 and 355,497.03

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Solution

The fourth proportional to 617,132.68, 851,707.20 and 355,497.03 is: 490,622.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,132.68 : 851,707.20 = 355,497.03 : x
  2. Step 2: Convert to fraction form
    617,132.68/851,707.20 = 355,497.03/x
  3. Step 3: Cross multiply
    617,132.68x = 851,707.20 × 355,497.03
  4. Step 4: Simplify right side
    617,132.68x = 302,779,380,029.62
  5. Step 5: Solve for x
    x = 302,779,380,029.62/617,132.68
  6. Step 6: Final answer
    x = 490,622.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.